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    Home » Brownies

    One-Bowl Fudgy Oreo Brownies

    By Mike Johnson ⁠— April 1, 2025 (Updated April 8, 2025) — 3 Comments

    5 from 1 vote

    Meet one-bowl fudgy Oreo brownies - the most ridiculously delicious brownies loaded with chunks of Oreos throughout. With shiny crackly tops, ultra-fudgy centers, and the perfect cookies 'n cream flavor in every bite, these one-bowl wonders might just ruin all other brownies for you. Consider yourself warned.
    Jump to Recipe Leave a Comment

    This post may contain affiliate links. Read my Disclosure page.

    Let's be honest... when a chocolate craving strikes, only the fudgiest, most indulgent brownies will do... and that's exactly why I'm sharing the recipe for these one-bowl fudgy Oreo brownies.

    Oreo Brownies on top of parchment paper with pieces of Oreo cookies and a glass of milk and napkin nearby.

    After testing countless batches (tough job, I know), I've perfected these Oreo-stuffed brownies with a technique that ensures that elusive shiny top everyone fights over. Melting some sugar with butter and oil creates a magical syrup that guarantees fudginess, while beating the remaining sugar with eggs gives you that Instagram-worthy shiny top. Then we fold in regular cocoa, black cocoa, chopped Oreos, AND chocolate chips because, apparently, regular brownies weren't decadent enough. The result? A brownie so good you'll suddenly become very popular at potlucks. Just don't tell anyone how easy they were to make - let them think you slaved away all day.

    Close up of Oreo brownies showing off fudgy interior with melted chocolate chips.

    And can we talk about the Oreo situation for a second? While recipe testing, I tried crushing them into oblivion and incorporating them into the batter, which was a rookie mistake; the texture and flavor of the Oreos disappeared almost entirely. Instead, my recipe testing revealed the best thing to do is roughly chop them so you get these glorious chunks throughout the brownies. Some go right into the batter, creating perfect pockets of cookies n cream goodness, while others get pressed on top for that beautiful visual appeal. Each bite gives you the perfect ratio of fudgy brownie to crunchy cookie bits.

    Looking for other mind-blowing brownie recipes? Don't worry, I've got you covered with my red velvet brownies, s'mores brownies, and cookie butter brownies - because clearly, I have a brownie problem.

    How to Make Fudgy Oreo Brownies

    Butter, sugar, and oil being combined over medium heat until bubbly.
    Mix the butter, oil, and sugar over medium-low heat until everything melts into a magical sweet syrup.
    Eggs and sugar being whipped in a mixing bowl.
    Whip those eggs and the remaining sugar together till they're light and fluffy.
    Butter and sugar syrup mixture being beaten into egg mixture.
    Carefully beat in the warm butter/oil/sugar syrup mixture.
    Dry ingredients being folded into brownie batter.
    Fold in those dry ingredients with a quick mix until just combined - don't overdo it.
    Chocolate chips and oreos being incorporated into the brownie batter.
    Toss in most of those chocolate chips and Oreo chunks and mix until combined.
    Brownie batter being spread into baking pan.
    Scoop that batter into your baking pan and sprinkle the rest of those chocolate chips and Oreos on top - then pop it in the oven and let the magic happen!
    Close up of oreo brownie with a bite missing showing off moist and fudgy texture.
    Oreo Brownies on top of parchment paper with pieces of Oreo cookies and a glass of milk and napkin nearby.
    Print Recipe
    5 from 1 vote

    One-Bowl Fudgy Oreo Brownies

    Meet one-bowl fudgy Oreo brownies - the most ridiculously delicious brownies loaded with chunks of Oreos throughout. With shiny crackly tops, ultra-fudgy centers, and the perfect cookies 'n cream flavor in every bite, these one-bowl wonders might just ruin all other brownies for you. Consider yourself warned.
    Course: Dessert
    Cuisine: American
    Keyword: Brownies & Bars, Oreos
    Servings: 16 brownies
    Calories: 244kcal
    Author: Mike Johnson

    Ingredients

    • 150 g unsalted butter
    • 28 g vegetable oil
    • 250 g granulated sugar divided
    • 2 large eggs (~100g)
    • 1 teaspoon vanilla extract
    • 85 g all-purpose flour
    • 25 g unsweetened natural or Dutch process cocoa powder
    • 5 g black cocoa *see notes
    • ½ teaspoon fine sea salt
    • 115 g semisweet chocolate chips
    • 12 Oreos roughly chopped
    Metric - US Customary

    Instructions

    • Preheat the oven to 350°F (180°C). Grease and line an 8x8-inch pan with parchment paper, letting the excess extend over the sides of the pan, then set aside.
    • Combine the butter, oil, and ½ cup (100 g) of the granulated sugar in a small saucepan over medium-low heat and stir until completely melted; the mixture will bubble up and have a syrupy texture. Then, remove it from the heat and set it aside.
    • In the bowl of a stand mixer fitted with the whisk attachment, or in a large bowl using an electric hand mixer, whisk together the remaining ¾ cup (150 g) of granulated sugar, eggs, and vanilla on medium-high until combined and fluffy, about 3-4 minutes.
    • Add the slightly cooled butter/sugar mixture and beat until well incorporated.
    • Add in the flour, cocoa powder, black cocoa, and salt, and use a rubber spatula to gently fold until mostly combined. Fold in most of the chocolate chips and Oreos (reserve some for the next step) until incorporated.
    • Pour the batter into the prepared baking pan and smooth the top with a spatula. Sprinkle the remaining chocolate chips and Oreos on top. Bake for 30-35 minutes, or until a toothpick inserted into the center of the brownies comes out fudgy but the edges look cooked through.
    • Remove from the oven and place on a wire rack to cool completely in the pan before cutting into squares. Cover and store leftover brownies at room temperature for up to 5 days.

    Notes

    Black cocoa powder is what gives Oreo cookies their distinctive deep color and flavor. It's gone through an ultra-Dutch processing method that completely neutralizes the acidity, leaving you with a mellow, non-bitter cocoa that's dramatically black. If you don't have any on hand, feel free to substitute regular or Dutch-processed cocoa in the same amount. Your Oreo brownies will still turn out great, just with a slightly different taste.

    Nutrition

    Serving: 1 brownie | Calories: 244kcal | Carbohydrates: 31g | Protein: 3g | Fat: 13g | Saturated Fat: 7g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 4g | Trans Fat: 0.3g | Cholesterol: 44mg | Sodium: 119mg | Potassium: 108mg | Fiber: 2g | Sugar: 22g | Vitamin A: 272IU | Calcium: 16mg | Iron: 2mg
    Did you try this recipe?Tag @mikebakesnyc and use the hashtag #mikebakesnyc!

    Filed Under

    BrowniesOne BowlChocolateOreos
    « Fudgy Biscoff Brownies
    Bakery-Style Soft-Baked M&M Cookies »

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    Comments

      5 from 1 vote

      Rate this Recipe + Leave a Review Cancel reply

      If you made this recipe, I'd love for you to leave a rating + review below to let me know how you liked it! If you have any questions, please feel free to leave those below too!

      Thanks,
      Mike

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      Recipe Rating




    1. Suzanne

      April 21, 2025 at 5:50 pm

      5 stars
      Great recipe, wide appeal, delicious first time out!

      Reply
      • Mike Johnson

        April 30, 2025 at 1:25 pm

        Thanks for the feedback! Love that the brownies were a hit on your first try!

        Reply
    2. Angela

      April 08, 2025 at 7:55 pm

      I can’t wait to make these!! They look amazing!!

      Reply

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